OTHER (INCOME)/EXPENSE, NET - Schedule Of Other Income Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Nonoperating Income (Expense) [Abstract]
Interest expense	$ 1,334	$ 1,420	$ 656
Royalties and licensing income	(1,733)	(1,527)	(1,360)
Equity investment gains	(745)	(1,228)	(275)
Integration expenses	564	717	415
Contingent consideration	(542)	(1,757)	523
Loss on debt redemption	281	0	0
Provision for restructuring	169	530	301
Litigation and other settlements	82	(194)	77
Transition and other service fees	(49)	(149)	(37)
Investment income	(39)	(121)	(464)
Pension and postretirement	(15)	(13)	1,599
Divestiture gains	(9)	(55)	(1,168)
Reversion excise tax	0	76	0
Intangible asset impairment	0	21	15
Acquisition expenses	0	0	657
Other	(18)	(34)	(1)
Other (income)/expense, net	$ (720)	$ (2,314)	$ 938